1.启动流程并分配任务是单个流程的正式開始,因此要使用到runtimeService接口。以及相关的启动流程的方法。我习惯于用流程定义的key启动,由于有多个版本号的流程定义时,用key启动默认会使用最新版本号。同一时候,由于启动中查询了流程部署时xml文件里流程节点的信息。也用到了repositoryService及相关方法。
2.后台业务代码,
(1)自己定义的申请单实体类(为的目的仅仅为了跑通整个流程。因此仅仅定义了一个实体类。按公司标准开发来说,应该是和前台交互一个command类(事实上也还是实体类,叫法不一样而已),和数据库交互另一个实体类),在这里定义了一个申请单的基本信息:
(2)业务逻辑:
A,这种方法获取流程部署时xml文件中的各个节点相关信息。用来辨别当前是哪个节点,下一节点又是什么,共下边的B方法调用。由于操作部署时的文件,因此使用repositoryService:
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public Iterator<FlowElement> findFlow(String processDefId)
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throws XMLStreamException {
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List<ProcessDefinition> lists = repositoryService
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.createProcessDefinitionQuery()
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.processDefinitionId(processDefId)
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.orderByProcessDefinitionVersion().desc().list();
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ProcessDefinition processDefinition = lists.get(0);
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processDefinition.getCategory();
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String resourceName = processDefinition.getResourceName();
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InputStream inputStream = repositoryService.getResourceAsStream(
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processDefinition.getDeploymentId(), resourceName);
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BpmnXMLConverter converter = new BpmnXMLConverter();
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XMLInputFactory factory = XMLInputFactory.newInstance();
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XMLStreamReader reader = factory.createXMLStreamReader(inputStream);
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BpmnModel bpmnModel = converter.convertToBpmnModel(reader);
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Process process = bpmnModel.getMainProcess();
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Collection<FlowElement> elements = process.getFlowElements();
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Iterator<FlowElement> iterator = elements.iterator();
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return iterator;
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}
B.这里调用上一个方法,一起完毕流程的启动及相关信息的设置:
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@RequestMapping(value = "/startProcess.do", method = RequestMethod.POST, produces = "application/json;charset=utf-8")
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@ResponseBody
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public Object startProcess(@RequestBody applyModel applyModel,
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HttpServletRequest req) throws XMLStreamException {
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Map<String, String> map = new HashMap<String, String>();
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boolean isLogin = this.isLogin(req);
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if (isLogin) {
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if (applyModel != null) {
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String processKey = applyModel.getKey();
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String processDefId = applyModel.getProDefId();
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Iterator<FlowElement> iterator = this.findFlow(processDefId);
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Map<String, Object> varables = new HashMap<String, Object>();
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int i = 1;
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while (iterator.hasNext()) {
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FlowElement flowElement = iterator.next();
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if (flowElement.getClass().getSimpleName()
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.equals("UserTask")
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&& i == 1) {
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UserTask userTask = (UserTask) flowElement;
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String assignee = userTask.getAssignee();
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int index1 = assignee.indexOf("{");
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int index2 = assignee.indexOf("}");
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varables.put(assignee.substring(index1 + 1, index2),
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applyModel.getAppPerson());
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varables.put("cause", applyModel.getCause());
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varables.put("content", applyModel.getContent());
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varables.put("taskType", applyModel.getName());
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i++;
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} else if (flowElement.getClass().getSimpleName()
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.equals("UserTask")
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&& i == 2) {
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UserTask userTask = (UserTask) flowElement;
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String assignee = userTask.getAssignee();
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int index1 = assignee.indexOf("{");
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int index2 = assignee.indexOf("}");
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varables.put(assignee.substring(index1 + 1, index2),
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applyModel.getProPerson());
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break;
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}
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}
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runtimeService.startProcessInstanceByKey(processKey, varables);
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map.put("userName",
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(String) req.getSession().getAttribute("userName"));
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map.put("isLogin", "yes");
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map.put("result", "success");
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} else {
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map.put("result", "fail");
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}
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} else {
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map.put("isLogin", "no");
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}
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return map;
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}
3.angular js前台代码。:
(1)app.js中配置路由:
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$stateProvider
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.state(‘startProcess‘, {
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url: "/startProcess",
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views: {
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‘view‘: {
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templateUrl: ‘activi_views/startProcess.html‘,
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controller: ‘startProcessCtr‘
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}
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}
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});
(2)逻辑相关代码:
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angular.module(‘activitiApp‘)
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.controller(‘startProcessCtr‘, [‘$rootScope‘,‘$scope‘,‘$http‘,‘$location‘, function($rootScope,$scope,$http,$location){
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$http.post("createFlush.do").success(function(result){
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if(result.isLogin==="yes"){
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$rootScope.userName=result.userName;
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$scope.process1={"proDefId":"","key":"","appPerson":"","cause":"","content":"","proPerson":"","name":""};
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if($rootScope.process==null||$rootScope.process.key==null){
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$location.path("/processList");
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}else{
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$scope.process1.proDefId=$rootScope.process.id;
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$scope.process1.key=$rootScope.process.key;
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$scope.process1.name=$rootScope.process.name;
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}
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}else{
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$location.path("/login");
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}
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});
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$scope.startProcess=function(process){
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console.log(process);
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$http.post("./startProcess.do",process).success(function(deployResult){
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$location.path("/taskList");
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});
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}
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}])
4.相应的填写相关信息的页面:
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<center>
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<div style="margin-top:20px;margin-left:200px;background-color:#9cc;height:500px;width:50%;font-size:22px;position:relative;float:left;">
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<p style="font-size:28px">新建申请</p>
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流程定义id:<input type="text" ng-model="process1.proDefId" readonly="readonly" style="background-color:#9dc"/>
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</br>
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</br>
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流程定义key:<input type="text" ng-model="process1.key" readonly="readonly" style="background-color:#9dc"/>
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</br>
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</br>
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申请类型:<input type="text" ng-model="process1.name" readonly="readonly" style="background-color:#9dc"/>
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</br>
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</br>
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申请人:<input type="text" ng-model="process1.appPerson" />
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</br>
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</br>
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申请原因:<input type="text" ng-model="process1.cause"/>
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</br>
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</br>
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申请内容:<input type="text" ng-model="process1.content"/>
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</br>
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</br>
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受理人:<input type="text" ng-model="process1.proPerson"/>
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</br>
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</br>
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<input style="font-size:24px;cursor:pointer" type="button" value="提交申请" ng-click="startProcess(process1);">
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<input style="font-size:24px;cursor:pointer" type="button" value="返回">
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</div>
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</center>
5.成功启动一个流程实例后,会看到act_ru_execution、act_ru_identitylink、act_ru_task、act_ru_variable以及act_hi_actinst、act_hi_detail、act_hi_indentitylink、act_hi_procinst、act_hi_taskinst、act_hi_varinst表中都有了数据。除开variable和varinst中的数据条数是依据相应的流程变量多少来定的。其它都是添加了一条数据。